CN102353984A - Dynamic allocation method for link type acquisition node addresses in seismic spread - Google Patents
Dynamic allocation method for link type acquisition node addresses in seismic spread Download PDFInfo
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Abstract
The invention belongs to the field of geophysical exploration and provides a method for sequentially setting all acquisition node addresses in a seismic spread flexibly and reliably. In the method, spread segments can be connected according to needs and any sequence without considering serial numbers of the spread segments; and the influence from the change of a seismic exploration environment is avoided. The invention adopts the technical scheme that the dynamic allocation method for the link type acquisition node addresses in the seismic spread comprises the following specific communication steps of: enabling a system controlling and processing center to transmit an address setting command to a data preprocessing module; analyzing the address setting command by using the data preprocessing module; transmitting an address setting start command to each acquisition node for two times by adopting a broadcast mode according to the address setting flow; and repeating the setting process of each acquisition node address for two times and comparing the consistency of address setting results in the address setting processes for two times until the address setting is succeeded. The dynamic allocation method is mainly applied to the geophysical exploration.
Description
Technical field
The invention belongs to the geophysical survey field, be the dynamic allocation method of a large amount of acquisition node address of chain structure distribution in particularly arranging, specifically, relate to the dynamic allocation method of chain type acquisition node address in the seismic arrangement about seismic survey.
Background technology
The detection arrangement section that the main flow seismic survey is arranged many weak points is formed by connecting; When laying at the scene, because the seismic survey construction environment is complicated and changeable, therefore length of arranging and erection sequence need to change flexibly based on field requirement.But the address that existing seismic survey is arranged acquisition node in the section is changeless, when laying at the scene, need always sequentially lay with being connected according to the numbering of surveying arrangement and signal flow and arrange section; If because human factor, section is arranged in a certain detection not to be had and can connect by the reality numbering is correct, and then confusion will take place in the address of acquisition node in the system, and makes the seismic survey arranging system can't operate as normal.
Summary of the invention
For overcoming the deficiency of prior art; Overcome existing seismic instrument and arrange the shortcoming of very flexible when connecting; Provide a kind of can the connection by random order as required to arrange section; Needn't consider the numbering problem of the section of arrangement; Be not subjected to the influence of seismic survey environmental change, the method for all acquisition node addresses in the seismic survey arrangement can be set to flexibility and reliability in proper order; The technical scheme that the present invention takes is; The dynamic allocation method of chain type acquisition node address in the seismic arrangement; Adopt down order path and upstream data path to realize the communication mode of full duplex, concrete communication steps is following: make system's control and processing enter send the address setting order to data preprocessing module; After data preprocessing module is resolved address setting order,, adopt the mode of broadcasting to transmit the address setting initiation command twice to each acquisition node according to the address setting flow process; Each acquisition node receives order through downlink on the one hand and it is decoded; On the other hand; Receive the data that are used to carry out address setting that the next stage acquisition node is uploaded through uplink; After each acquisition node receives the address setting order; Mode with streamline increases sign to upper level acquisition node forwarding address; Meanwhile, whenever receive primary address growth sign and just the address of self is increased 1; Aforesaid address setup procedure repeats twice, and compares address setting result's in this twice address setup procedure consistance, if the address setting result is consistent; Then show the address setting success; Inconsistent, the setting up procedure of address again then is till the address setting success; At last, data preprocessing module transfers to system's control and processing enter with the quantity of address setting information of successful and acquisition node.
Said data preprocessing module employing system's control and processing enter interface module, command decoder module, address setting order diverter module, timer, Data Receiving and forwarding module are formed; When the command decoder module when system control and processing enter interface module receive the address setting order, it is T that address setting order diverter module starts timing
cTimer, and send the beginning order of address setting for the first time to all acquisition nodes with the mode of broadcasting simultaneously; As timing T
cWhen being timed to for the first time, address setting order diverter module restarts timer, and sends the beginning order of address setting for the second time to all acquisition nodes simultaneously; As timing T
cDuring timing arrives and address setting success for the second time; Address setting order diverter module sends order Save_address with the mode of broadcasting to all acquisition nodes on the one hand; Notify each acquisition node to preserve self address; The total quantity n of acquisition node feeds back in system's control and the processing enter on the other hand that address setting is successful relevant information and the seismic survey arranging system; Said Data Receiving and forwarding module receive on the one hand from the address that acquisition node transmits and increase sign, realize the reception and the repeating process of latter earthquake data on the other hand.
Said acquisition node adopts command decoder, address setting and storage control, Data Receiving and forwarding module, two timers, two address cachings, address contrast module, eeprom memories to form; Command decoder module in i acquisition node is decoded to the order that receives; When decoded result is address when beginning order is set, the enabling address is provided with storage control module carries out address setting; Data Receiving and forwarding module receive the address growth sign that next stage acquisition node i-1 uploads on the one hand, on the other hand the address are increased sign and are forwarded to upper level acquisition node i+1; Address setting and storage control module are used for resetting of setting and the storage of address, two timers and start; First address caching is used to store the node address that completion is set for the first time; Second address caching is used to store the node address that completion is set for the second time; Contrast module in address compares the consistance of address in two address cachings on the one hand, and correct address is stored among the storer EEPROM; Whether successful relevant information feeds back to system's control and processing enter through Data Receiving and forwarding module with address setting on the other hand.
Acquisition node i, i=1,2 ..., n, in to be provided with a timer timing be T
c, acquisition node i receives the address at every turn and increases when indicating, with this timer zero clearing, and picks up counting again; As timing T
cWhen being timed to for the first time, contrast module in address is read into the address value in first address caching in the address contrast module; As this timer timing T
cWhen being timed to for the second time, contrast module in address is read into the address value in second address caching earlier in the address contrast module, and whether the address of comparing then in two Address Registers equates; If the address is unequal, then address contrast module startup timing length is 2T
cAnother timer, when another timer timing then, contrast module in address receives with forwarding module through the signal wire control data and transmits the status information that shows the address setting mistake to system's control and processing enter; After system's control receives the status information of address setting mistake with processing enter,, promptly send the address setting order with the address setup procedure of restarting systems; If twice address setting result equates before and after in all acquisition nodes; Then show the address setting success of acquisition node; When timer is timed to for the second time in the pending data pretreatment module; Address setting order diverter module sends the address hold-over command with the mode of broadcasting to all acquisition nodes on the one hand, notifies each acquisition node that self address is kept among the storer EEPROM; The total quantity n of acquisition node feeds back in system's control and the processing enter on the other hand that address setting is successful relevant information and the seismic survey arranging system.
The shortcoming of very flexible when the present invention can effectively overcome existing seismic survey and is arranged in present the laying, and have following characteristics simultaneously: seismic survey is arranged section and can be connected by random order as required, needn't consider the numbering problem of the section of arrangement; Do not increase additional hardware, utilize the existing chain structure characteristics of seismic arrangement, accomplish dynamically arranging of acquisition node address; The time of acquisition node address setting in the mode shortening system of employing streamline; Through contrasting the address setting result twice, disturb influence in reducing to arrange to address setup procedure, improve the reliability of address setting.
Description of drawings
Other purpose of the present invention and aspect will become clear with reference to the accompanying drawings from following embodiment, in the accompanying drawing:
Fig. 1 illustrates towing cable collection general system proposal block diagram of the present invention.
Fig. 2 illustrates the dynamic assignment model of acquisition node of the present invention address and the synoptic diagram that the node address streamline increases.
Fig. 3 illustrates data preprocessing module cut-away view of the present invention.
Fig. 4 illustrates the cut-away view of any one acquisition node among the present invention.
Fig. 5 illustrates experiment and the curve-fitting results figure in the embodiment of the invention.
Among Fig. 1: 1 is system's control and processing enter; 2 are order, data and status bus; 3 is the sound source control bus; 4 is sound source; 5 is sound wave; 6 are seismic survey arrangement head connector; 7 is data preprocessing module; 8 is acquisition node; 9 is synchronous acquisition major clock transmission line; 10 is data and state transfer line; 11 is the command transfer line; 12 is the sea level; 13 is sensor; 14 for arranging the section connector; 15 is sea bed; 16 is acquisition node; 17 is acquisition node; 18 for arranging the afterbody connector.
Among Fig. 2: 19 is acquisition node 3.
Among Fig. 3: 20 are system's control and processing enter interface module; 21,22,23,24,25,26,27 is the FGPA internal signal wire; 28 are address setting order diverter module; 29 is the FGPA internal signal wire; 30 is the command decoder module; 31 is Data Receiving and forwarding module; 32 is timer; 33 is signal wire; 34 is the FGPA internal signal wire; 35 is signal wire.
Among Fig. 4: 36,37 is signal wire; 38,39 is the FGPA internal signal wire; 40 is address setting and storage control module; 41 is the command decoder module; 42 is the FGPA internal signal wire; 43 is Data Receiving and forwarding module; 44 is timer A; 45 is signal wire; 46 is EEPROM; 47 is address caching A; 48 is address caching B; 49 is the FGPA internal signal wire; 50 are address contrast module; 51 is the FGPA internal signal wire; 52 is timer B.
Embodiment
The shortcoming of very flexible when the objective of the invention is to overcome existing seismic survey and being arranged in present the laying, provide a kind of can flexibility and reliability ground order be provided with seismic survey arrange in the method for all acquisition node addresses.
The first step is to confirm seismic survey arrangement acquisition system overall plan.
Seismic survey is arranged acquisition system overall plan block diagram as shown in Figure 1, and it is mainly by system's control and processing enter 1, order, data and status bus 2; Sound source control bus 3, sound source 4, seismic survey is arranged head connector 6; Data preprocessing module 7, acquisition node 8, synchronous acquisition major clock transmission line 9; Data and state transfer line 10, command transfer line 11, sensor 13; Arrange section connector 14; Acquisition node 16, acquisition node 17 is arranged afterbody connector 18.
Second step was the dynamic assignment model that has designed a kind of acquisition node address.
As shown in Figure 2, survey the communication mode that arranging system is realized full duplex through down order path 11 and upstream data path 10.System's control is sent address setting order address_set with processing enter 1 to data preprocessing module 7; After 7 couples of address_set of data preprocessing module resolve,, adopt the mode of broadcasting initiation command address_set_start_1 and address_set_start_2 to be set to each acquisition node transport address according to the address setting flow process.Each acquisition node receives order through downlink on the one hand and decodes; On the other hand, receive the address growth sign that the next stage acquisition node is uploaded through uplink.Wherein, address_set, address_set_start_1 and address_set_start_2 are the order data of three different 8bit.
Said data preprocessing module 7 as shown in Figure 3, it is by system control and processing enter interface module 20, command decoder module 30, address setting order diverter module 28, timer 32, Data Receiving and forwarding module 31 compositions.
Said acquisition node i (i=1,2,3 ...) as shown in Figure 4, it is by command decoder 41; Address setting and storage control 40, Data Receiving and forwarding 43, timer A44, address caching A47; Address caching B48, address contrast module 50, EEPROM46, timer B52 forms.
The third step is to design a dynamic set of seismic acquisition node address permutation method comprising the steps of: (a) the need for the seismic exploration field segments are arranged arbitrarily selected laying site, (b) the detection system after power-up initialization phase, the completion of all the collection node detection system address setting; wherein said step (b) comprises the steps of: (b1) system control and processing center 1 sends to the data pre-processing module 7 address setting command, (b2 ) data preprocessing module 7 start first acquisition node address set-up process, (b3) all acquisition node pipelined manner own address first set, (b4) data preprocessing module 7 start second acquisition nodes address set-up process, (b5) all acquisition nodes in a pipelined manner own address of the second set, (b6) Compare all acquisition node address set twice the result is the same, if the same, indicating arrangement acquisition node address successfully set; If not, restart the step (b) the address mentioned in the setup process until all collection node address set the same result twice so far, (c) When the address is set after the success of each collection node address corresponding to save itself in their respective non-volatile memory, (d) data preprocessing module 7 will address setting successful information and gathering the number of nodes transferred to a system control and processing center.
The time that the 4th step was spent the acquisition node address setup procedure is analyzed, and the time that quantity and address setup procedure spent of acquisition node in arranging of having drawn is satisfied the conclusion of linear relationship.
The 5th step described the power supply of system: all modules that need supply power all adopt corresponding power module to supply power in the system, so that its energy needed can obtain work the time.
The characteristics of acquisition node according to the invention address dynamic setting method are: seismic survey is arranged section and can be connected by random order as required, needn't consider the numbering problem of arranging; Do not increase additional hardware, utilize the existing chain structure characteristics of seismic arrangement, accomplish dynamically arranging of acquisition node address; The time of acquisition node address setting in the mode shortening system of employing streamline; Through contrasting the address setting result twice, disturb influence in reducing to arrange to address setup procedure, improve the reliability of address setting.
Below in conjunction with accompanying drawing and the specific embodiment of the present invention the present invention is described in further detail.
Technical scheme of the present invention is, after each acquisition node receives the address setting order, increases sign with the mode of streamline to upper level acquisition node forwarding address, meanwhile, whenever receives primary address and increases sign and just the address of self is increased 1; Such address setup procedure repeats twice, and compares address setting result's in this twice address setup procedure consistance; If the address setting result is consistent, then show the address setting success; Inconsistent, the setting up procedure of address again then is till the address setting success.
The first step is the groundwork flow process of acquisition node address dynamic assignment model.
Survey the communication mode that arranging system is realized full duplex through down order path 11 and upstream data path 10.System's control is sent address setting order address_set with processing enter 1 to data preprocessing module 7; After 7 couples of address_set of data preprocessing module resolve,, adopt the mode of broadcasting initiation command address_set_start_1 and address_set_start_2 to be set to each acquisition node transport address according to the address setting flow process.Each acquisition node receives order through downlink on the one hand and decodes; On the other hand, receive the data that are used to carry out address setting that the next stage acquisition node is uploaded through uplink.
Second step was the workflow of data preprocessing module.
When command decoder module 30 received address setting order address_set, it was T that address setting order diverter module 28 starts timing
cTimer 32, and send the beginning order address_set_start_1 of address setting for the first time to all acquisition nodes with the mode of broadcasting simultaneously; As timing T
cWhen being timed to for the first time, address setting order diverter module 28 restarts timer 32, and sends the beginning order address_set_start_2 of address setting for the second time to all acquisition nodes simultaneously.As timing T
cDuring timing arrives and address setting success for the second time; Address setting order diverter module 28 sends order Save_address with the mode of broadcasting to all acquisition nodes on the one hand, notifies each acquisition node that self address is kept in the nonvolatile memory EEPROM; The total quantity n of acquisition node feeds back in system's control and the processing enter 1 on the other hand that address setting is successful relevant information and the seismic survey arranging system.
The 3rd step was i (i=1,2,3 ...) workflow of individual acquisition node.
41 pairs of orders that receive of command decoder module in i acquisition node are decoded; When decoded result is address when beginning to be provided with order address_set_start_1 or address_set_start_2, the enabling address is provided with storage control module 40 carries out address setting; Data Receiving and forwarding module 43 receive " address increases sign (A_up_flag1 or A_up_flag2) " that next stage acquisition node i-1 uploads on the one hand, on the other hand " address increases sign " are forwarded to upper level acquisition node i+1; Address setting and storage control module 40 are used for the setting of address and resetting and startup of storage, timer A and timer B; Address caching A47 is used to store the node address that completion is set for the first time; Address caching B48 is used to store the node address that completion is set for the second time; The address contrasts the consistance of address among module 50 one side compare address buffer memory A47 and the address caching B48, and correct address is stored in the nonvolatile memory EEPROM 46; Whether successful relevant information feeds back in system's control and the processing enter 1 through Data Receiving and forwarding module 43 with address setting on the other hand.Wherein, A_up_flag1 is the data of the presentation address growth sign of two different 8bit with A_up_flag2.
The 4th step was the course of work that further describes acquisition node address dynamic allocation method.
Step 1: Data Control and processing enter 1 are provided with order address_set to data preprocessing module 7 transfer addresses; Data preprocessing module 7 starts timer 32 regularly; And begin to be provided with order address_set_start_1 to all acquisition node broadcast addresses simultaneously; Acquisition node i (i=1; 2;, n; I representes wherein arbitrary acquisition node) receive that address_set_start_1 order back is address address_1_1 with the address setting of self earlier, and deposit among the address caching A47; And then to upper level acquisition node i+1 transmission primaries A_up_flag1 data.
Illustrate: being provided with a timing in the data preprocessing module 7 is 2T
cTimer 32.When data preprocessing module 7 receives A_up_flag1 or A_up_flag2 at every turn,, and pick up counting again timer 32 zero clearings.
Step 2: when acquisition node i received A_up_flag1 that next stage acquisition node i-1 sends or A_up_flag2 at every turn, the address value with self added 1 on the one hand; Again this A_up_flag1 or A_up_flag2 are forwarded to upper level acquisition node i+1 on the other hand.
Illustrate: acquisition node i (i=1,2 ..., being provided with a timing in n) is T
cTimer A44.When acquisition node i receives A_up_flag1 or A_up_flag2 at every turn,, and pick up counting again timer A44 zero clearing; As timing T
cWhen being timed to for the first time, contrast module 50 in address is read into the address value address_1_i among the address caching A47 in the address contrast module.
Step 3: timer timing 2T 32 first time in data preprocessing module 7
cWhen being timed to, show that the address setting of acquisition node is accomplished in will arranging for the first time.Address setting order diverter module 28 in the data preprocessing module 7 restarts timer 32 at this moment; And begin to be provided with order address_set_start_2 to all acquisition node broadcast addresses; Acquisition node i receives that address_set_start_2 order back is address address_2_1 with the address setting of self earlier, and deposits in the address caching 2; And then to upper level acquisition node i+1 transmission primaries A_up_flag2 data.
Step 4: timer A timing T in acquisition node i
cWhen being timed to for the second time, contrast module in address is read into the address value address_2_i in the address caching 2 earlier in the address contrast module, and relatively whether address_1_i equates with address_2_i then.
Step 5: if address_1_i and address_2_i are unequal, then address contrast module 50 startup timing lengths are 2T
cTimer B; When timer B timing then, contrast module 50 in address receives with forwarding module 43 through signal wire 42 control datas and transmits the status information address_set_error that shows the address setting mistake to system's control and processing enter 1; After system's control receives address_set_error information with processing enter 1,, promptly change step 1 over to the address setup procedure of restarting systems.If twice address setting result equates before and after in all acquisition nodes; Then show the address setting success of acquisition node; When timer 32 is timed to for the second time in the pending data pretreatment module 7; Address setting order diverter module 28 sends order Save_address with the mode of broadcasting to all acquisition nodes on the one hand, notifies each acquisition node that self address is kept in the nonvolatile memory EEPROM; The total quantity n of acquisition node feeds back in system's control and the processing enter 1 on the other hand that address setting is successful relevant information and the seismic survey arranging system.
Illustrate: why the timing length of timer B is arranged to 2T
c, be in order not allow acquisition node i send the time of address_set_error information and the time conflict that other acquisition node forwarding address increases sign.
Can know according to above-mentioned steps and method; Because acquisition node 1 no downstream site; So it can not receive A_up_flag1 or A_up_flag2 data that the next stage acquisition node transmits, so its address value is 1+0=1, promptly the address is address_1_1=address_2_1=address_1; Acquisition node 2 is because A_up_flag1 that has received that next stage acquisition node (node 1) transmits or A_up_flag2 data, so its address value is 1+1=2, promptly the address is address_1_2=address_2_2=address_2; Acquisition node 3 is because A_up_flag1 that has received that node 1 and node 2 transmit respectively or A_up_flag_2 data; So its address value is 1+1+1=3; Be that the address is address_1_3=address_2_3=address_3, the rest may be inferred, and the address of acquisition node n is address_n.
The 5th step was analysis and the calculating that the acquisition node address dynamically arranges T.T.
Suppose acquisition node i from receive address_set_start_1 or address_set_start_2 order begin to change to upper level acquisition node i+1 spread out of A_up_flag1 or A_up_flag2 data till, institute is t through the time
1From spread out of A_up_flag1 or A_up_flag2 begin to receive spread out of A_up_flag1 or A_up_flag2 after A_up_flag1 that next stage acquisition node i-1 transmits or the A_up_flag2 data once more till, institute is t through the time
2Increase step by step based on the streamline of above-mentioned collecting unit address and to dynamically arrange algorithm, the address that can know each acquisition node is all with the mode of streamline section t at one time
2In increase by 1 simultaneously, so under normal circumstances, the T.T. T that the address process that dynamically arranges is spent
TotalFor:
T
total＝(t
1+(n-1)t
2+2T
c)×2 ……(1)
(1) formula abbreviation is got:
T
total＝2(n-1)t
2+2(t
1+2T
c) ………(2)
In the real system, t
1, t
2And T
cBe constant, by (2) formula can the knowledge system in acquisition node T.T. T is set
TotalWith the node number n (n=1,2 ...) satisfy linear relationship.
Be the embodiment of the dynamic allocation method of chain type acquisition node address in the seismic arrangement below.
Foundation has the experimental system for simulating of 8 acquisition nodes.In the experiment, use the RS485 physical chip to realize the transmission of order downlink and address date uplink, uplink and downlink asynchronous transmission baud rate all is set to 1.024Mbps.With the timer timing 2T in the data preprocessing module
cBe made as 31.25us; Between data preprocessing module and its next stage acquisition node and 2 meters of transmission multiple twin line lengths between each acquisition node.
During test, in data preprocessing module, can easily use SignalTap 2 logic analysers in the QuartusII9.0 software to check that the address of each acquisition node is set up the real time that completion spends; It is as shown in table 1 that all node addresss are provided with the deadline.
The raw data that table 1 number of nodes is corresponding with the address setting time
Experimental data in the his-and-hers watches 1 is carried out linear fit, obtains fitting function as shown in Figure 5:
v＝13.508x+54.488 ………(3)
Wherein, y and T
TotalCorrespondence, x is corresponding with n.
Can know that by (3) formula the accord with theoretical analysis in fitting function and curve and (2) formula has truly reflected acquisition node number and the corresponding relation of address setting T.T., also prove the validity of the inventive method simultaneously.
Claims (4)
1. the dynamic allocation method of chain type acquisition node address in the seismic arrangement; It is characterized in that; Adopt down order path and upstream data path to realize the communication mode of full duplex, concrete communication steps is following: make system's control and processing enter send the address setting order to data preprocessing module; After data preprocessing module is resolved address setting order,, adopt the mode of broadcasting to transmit the address setting initiation command twice to each acquisition node according to the address setting flow process; Each acquisition node receives order through downlink on the one hand and it is decoded; On the other hand; Receive the data that are used to carry out address setting that the next stage acquisition node is uploaded through uplink; After each acquisition node receives the address setting order; Mode with streamline increases sign to upper level acquisition node forwarding address; Meanwhile, whenever receive primary address growth sign and just the address of self is increased 1; Aforesaid address setup procedure repeats twice, and compares address setting result's in this twice address setup procedure consistance, if the address setting result is consistent; Then show the address setting success; Inconsistent, the setting up procedure of address again then is till the address setting success; At last, data preprocessing module transfers to system's control and processing enter with the quantity of address setting information of successful and acquisition node.
2. method according to claim 1; It is characterized in that; Said data preprocessing module employing system's control and processing enter interface module, command decoder module, address setting order diverter module, timer, Data Receiving and forwarding module are formed; When the command decoder module when system control and processing enter interface module receive the address setting order, it is T that address setting order diverter module starts timing
cTimer, and send the beginning order of address setting for the first time to all acquisition nodes with the mode of broadcasting simultaneously; As timing T
cWhen being timed to for the first time, address setting order diverter module restarts timer, and sends the beginning order of address setting for the second time to all acquisition nodes simultaneously; As timing T
cDuring timing arrives and address setting success for the second time; Address setting order diverter module sends order Save_address with the mode of broadcasting to all acquisition nodes on the one hand; Notify each acquisition node to preserve self address; The total quantity n of acquisition node feeds back in system's control and the processing enter on the other hand that address setting is successful relevant information and the seismic survey arranging system; Said Data Receiving and forwarding module receive on the one hand from the address that acquisition node transmits and increase sign, realize the reception and the repeating process of latter earthquake data on the other hand.
3. method according to claim 1; It is characterized in that; Said acquisition node adopts command decoder, address setting and storage control, Data Receiving and forwarding module, two timers, two address cachings, address contrast module, eeprom memories to form; Command decoder module in i acquisition node is decoded to the order that receives; When decoded result is address when beginning order is set, the enabling address is provided with storage control module carries out address setting; Data Receiving and forwarding module receive the address growth sign that next stage acquisition node i-1 uploads on the one hand, on the other hand the address are increased sign and are forwarded to upper level acquisition node i+1; Address setting and storage control module are used for resetting of setting and the storage of address, two timers and start; First address caching is used to store the node address that completion is set for the first time; Second address caching is used to store the node address that completion is set for the second time; Contrast module in address compares the consistance of address in two address cachings on the one hand, and correct address is stored among the storer EEPROM; Whether successful relevant information feeds back to system's control and processing enter through Data Receiving and forwarding module with address setting on the other hand.
4. method according to claim 1 is characterized in that, acquisition node i, and i=1,2 ..., n, in to be provided with a timer timing be T
c, acquisition node i receives the address at every turn and increases when indicating, with this timer zero clearing, and picks up counting again; As timing T
cWhen being timed to for the first time, contrast module in address is read into the address value in first address caching in the address contrast module; As this timer timing T
cWhen being timed to for the second time, contrast module in address is read into the address value in second address caching earlier in the address contrast module, and whether the address of comparing then in two Address Registers equates; If the address is unequal, then address contrast module startup timing length is 2T
cAnother timer, when another timer timing then, contrast module in address receives with forwarding module through the signal wire control data and transmits the status information that shows the address setting mistake to system's control and processing enter; After system's control receives the status information of address setting mistake with processing enter,, promptly send the address setting order with the address setup procedure of restarting systems; If twice address setting result equates before and after in all acquisition nodes; Then show the address setting success of acquisition node; When timer is timed to for the second time in the pending data pretreatment module; Address setting order diverter module sends the address hold-over command with the mode of broadcasting to all acquisition nodes on the one hand, notifies each acquisition node that self address is kept among the storer EEPROM; The total quantity n of acquisition node feeds back in system's control and the processing enter on the other hand that address setting is successful relevant information and the seismic survey arranging system.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103457686A (en) * | 2013-09-03 | 2013-12-18 | 天津大学 | Method and device for synchronizing conversion clocks in distributed seismic signal acquisition nodes |
| CN106405650A (en) * | 2016-08-27 | 2017-02-15 | 天津大学 | Underwater acoustic array system having rapid acquisition unit address distribution function |
| CN116147569A (en) * | 2023-04-20 | 2023-05-23 | 中大智能科技股份有限公司 | Automatic address allocation and sequencing method applied to array displacement meter |
| CN116155866A (en) * | 2023-04-20 | 2023-05-23 | 中大智能科技股份有限公司 | Automatic address allocation method and sequencing method of array displacement meter based on current detection |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457686A (en) * | 2013-09-03 | 2013-12-18 | 天津大学 | Method and device for synchronizing conversion clocks in distributed seismic signal acquisition nodes |
| CN103457686B (en) * | 2013-09-03 | 2016-02-10 | 天津大学 | The synchronous method of change over clock and device in Distributed seismic signals collecting node |
| CN106405650A (en) * | 2016-08-27 | 2017-02-15 | 天津大学 | Underwater acoustic array system having rapid acquisition unit address distribution function |
| CN116147569A (en) * | 2023-04-20 | 2023-05-23 | 中大智能科技股份有限公司 | Automatic address allocation and sequencing method applied to array displacement meter |
| CN116155866A (en) * | 2023-04-20 | 2023-05-23 | 中大智能科技股份有限公司 | Automatic address allocation method and sequencing method of array displacement meter based on current detection |
| CN116155866B (en) * | 2023-04-20 | 2023-06-20 | 中大智能科技股份有限公司 | Automatic address allocation method and sequencing method of array displacement meter based on current detection |
| CN116147569B (en) * | 2023-04-20 | 2023-06-30 | 中大智能科技股份有限公司 | Automatic address allocation and sequencing method applied to array displacement meter |
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